Styl cytowania APA

Kelle, V., & Kovalson, M. (1973). Historical materialism: An outline of marxist theory of society. Progress publishers.

Styl cytowania Chicago

Kelle, V., i M. Kovalson. Historical Materialism: An Outline of Marxist Theory of Society. Moscow: Progress publishers, 1973.

Styl cytowania MLA

Kelle, V., i M. Kovalson. Historical Materialism: An Outline of Marxist Theory of Society. Progress publishers, 1973.